<template>
  <el-row :gutter="20">
    <el-col :span="5">
      <!--1. 分类树形占 5 个单元宽度, 保留 ref, :data, :props, node-key 基本显示的属性
      2. node-click 实际是 el-tree 中规定好的实际，会传递三个参数: 参考 elmentui 官网
      elementui-Tree 树形控件-Events -->
  <el-tree ref="categoryTree" :data="data" :props="defaultProps" node-key="id" @node-click="nodeClick">
      <span class="custom-tree-node" slot-scope="{ node, data }">
      <span>{{ node.label }}</span>
      </span>
  </el-tree>
  </el-col>
  <el-col :span="19">
    <!-- 说明 原家居分类属性组的表单放在这里 带 div. -->
    <div class="mod-config">
      <el-form :inline="true" :model="dataForm" @keyup.enter.native="getDataList()">
        <el-form-item>
          <el-input v-model="dataForm.key" placeholder="参数名" clearable></el-input>
        </el-form-item>
        <el-form-item>
          <el-button @click="getDataList()">查询</el-button>
          <el-button v-if="isAuth('commodity:attrgroup:save')" type="primary" @click="addOrUpdateHandle()">新增</el-button>
          <el-button v-if="isAuth('commodity:attrgroup:delete')" type="danger" @click="deleteHandle()" :disabled="dataListSelections.length <= 0">批量删除</el-button>
        </el-form-item>
      </el-form>
      <el-table
          :data="dataList"
          border
          v-loading="dataListLoading"
          @selection-change="selectionChangeHandle"
          style="width: 100%;">
        <el-table-column
            type="selection"
            header-align="center"
            align="center"
            width="50">
        </el-table-column>
        <el-table-column
            prop="id"
            header-align="center"
            align="center"
            label="id">
        </el-table-column>
        <el-table-column
            prop="name"
            header-align="center"
            align="center"
            label="组名">
        </el-table-column>
        <el-table-column
            prop="sort"
            header-align="center"
            align="center"
            label="排序">
        </el-table-column>
        <el-table-column
            prop="description"
            header-align="center"
            align="center"
            label="说明">
        </el-table-column>
        <el-table-column
            prop="icon"
            header-align="center"
            align="center"
            label="组图标">
        </el-table-column>
        <el-table-column
            prop="categoryId"
            header-align="center"
            align="center"
            label="所属分类 id">
        </el-table-column>
        <el-table-column
            fixed="right"
            header-align="center"
            align="center"
            width="150"
            label="操作">
          <template slot-scope="scope">
            <el-button type="text" size="small" @click="relationAttrHandle(scope.row.id)">关联</el-button>
            <el-button type="text" size="small" @click="addOrUpdateHandle(scope.row.id)">修改</el-button>
            <el-button type="text" size="small" @click="deleteHandle(scope.row.id)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination
          @size-change="sizeChangeHandle"
          @current-change="currentChangeHandle"
          :current-page="pageIndex"
          :page-sizes="[2, 5, 10, 20]"
          :page-size="pageSize"
          :total="totalPage"
          layout="total, sizes, prev, pager, next, jumper">
      </el-pagination>
      <!-- 弹窗, 新增 / 修改 -->
      <add-or-update v-if="addOrUpdateVisible" ref="addOrUpdate" @refreshDataList="getDataList"></add-or-update>
      <!-- 维护关联关系的组件 -->
      <RelationUpdate v-if="relationVisible" ref="relationUpdate" @refreshData="getDataList"></RelationUpdate>
    </div>
  </el-col>
  </el-row>
</template>

<script>
  import AddOrUpdate from './attrgroup-add-or-update'
  import RelationUpdate from './attrgroup-attr-relation.vue'
  export default {
    data () {
      return {
        //数据池加入数据变量
        //显示某个属性分组下关联的所有商品属性(基本属性)情况
        relationVisible: false,
        //树形结构数据
        data: [],
        defaultProps: {
          children: 'childrenCategories', // 指定树形子结点所对应的属性
          label: 'name'  // 指定展示哪个属性的值作为tree的标识
        },
        dataForm: {
          key: ''
        },
        dataList: [],
        pageIndex: 1,
        pageSize: 10,
        totalPage: 0,
        dataListLoading: false,
        dataListSelections: [],
        addOrUpdateVisible: false,
        catId:0
      }
    },
    components: {
      AddOrUpdate,RelationUpdate
    },
    activated () {
      this.getCategories()
      this.getDataList()
    },
    methods: {
      //点击获取分类的属性分钟
      nodeClick(data){
        // console.log("data => ", data)
        if(data.catLevel > 2){
          this.catId=data.id
        }else {
          this.catId = 0
        }
        this.getDataList()
      },
      //获取商品类别树形结构数据
      getCategories() {  // 进行绑定树形格式数据 的 后台数据
        this.$http({
          // 直接自己指定
          url: this.$http.adornUrl(`/commodity/category/list/tree`),
          // url: 'http://localhost:9090/commodity/category/list/tree',
          method: 'get'
        }).then(({data}) => { // {data}: 表示返回的数据中key 为data 的子属性
          console.log(data)
          // 进行数据的绑定
          this.data = data.data
        })
      },
      // 获取数据列表
      getDataList () {
        this.dataListLoading = true
        this.$http({
          // url: this.$http.adornUrl('/commodity/attrgroup/list'),
          url: this.$http.adornUrl(`/commodity/attrgroup/list/${this.catId}`),
          method: 'get',
          params: this.$http.adornParams({
            'page': this.pageIndex,
            'limit': this.pageSize,
            'key': this.dataForm.key
          })
        }).then(({data}) => {
          if (data && data.code === 0) {
            this.dataList = data.page.list
            this.totalPage = data.page.totalCount
          } else {
            this.dataList = []
            this.totalPage = 0
          }
          this.dataListLoading = false
        })
      },
      // 每页数
      sizeChangeHandle (val) {
        this.pageSize = val
        this.pageIndex = 1
        this.getDataList()
      },
      // 当前页
      currentChangeHandle (val) {
        this.pageIndex = val
        this.getDataList()
      },
      // 多选
      selectionChangeHandle (val) {
        this.dataListSelections = val
      },
      // 新增 / 修改
      addOrUpdateHandle (id) {
        this.addOrUpdateVisible = true
        this.$nextTick(() => {
          this.$refs.addOrUpdate.init(id,this.catId)
        })
      },
      // 删除
      deleteHandle (id) {
        var ids = id ? [id] : this.dataListSelections.map(item => {
          return item.id
        })
        this.$confirm(`确定对[id=${ids.join(',')}]进行[${id ? '删除' : '批量删除'}]操作?`, '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          this.$http({
            url: this.$http.adornUrl('/commodity/attrgroup/delete'),
            method: 'post',
            data: this.$http.adornData(ids, false)
          }).then(({data}) => {
            if (data && data.code === 0) {
              this.$message({
                message: '操作成功',
                type: 'success',
                duration: 1500,
                onClose: () => {
                  this.getDataList()
                }
              })
            } else {
              this.$message.error(data.msg)
            }
          })
        })
      },
      //添加方法 relationAttrHandle
      //处理分组与属性的关联
      relationAttrHandle(groupId) {
        this.relationVisible = true;
        this.$nextTick(() => {
          this.$refs.relationUpdate.init(groupId);
        });
      },
    }
  }
</script>
